WELL · 42-477-30700 · DISTRICT 3
Giaccone-Lehmann Unit #1
Washington County · Giddings (Austin Chalk-3) field · Producing · Horizontal · Sidetrack
Giaccone-Lehmann Unit #1 (API 42-477-30700) is a horizontal well in Washington County operated by Magnolia Oil & Gas Operating LLC, completed June 21, 1993 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1992 and 1993, permitted to 15,500 ft.
It was permitted by Union Pacific Resources Company and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Midway, Navarro, Taylor, Pecan Gap.
Its lease has reported 526K barrels of oil and 1.78M mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Magnolia Oil & Gas Operating LLC
Permitted by Union Pacific Resources Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 6, 2026
- Permits on file
- 615
- Phone
- (713) 842-9050
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Magnolia Oil & Gas Operating LLC |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Apr 2026 |
| Latest permit | Union Pacific Resources CompanyFeb 8, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 15,500
- total depth, ft
- 2
- permits on file
- Feb 8, 1993
- last permit issued
- Jun 21, 1993
- completed
- 526K
- cumulative oil, bbl
- 1.78M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 21, 1993
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Giaccone-Lehmann Unit O-3-21886 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 2 | 526K | 1.78M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 29,304 · prior 12 33,080(-11%)
Gas, mcf lease total
Last 12 months 122,013 · prior 12 99,077(+23%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Pacific Resources CompanyJan 1993 → Jan 2001
- 2Rme Petroleum CompanyFeb 2001 → Nov 2002
- 3Anadarko E&P Company LPDec 2002 → Jul 2007
- 4Enervest Operating, L.L.C.Aug 2007 → Jul 2018
- 5Magnolia Oil & Gas Operating LLCAug 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 408760-99 | Recompletion · sidetrack | Union Pacific Resources Company | Feb 4, 1993 | Feb 8, 1993 | May 18, 1993 | 15,000 |
| 403823-99 | Drill | Union Pacific Resources Company | Sep 24, 1992 | Sep 30, 1992 | Oct 10, 1992 | 15,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-21886 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 346 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,691 | -6,345 |
| Navarro | 7,493 | -7,147 |
| Taylor | 8,048 | -7,702 |
| Pecan Gap | 8,968 | -8,622 |
| Austin Chalk | 9,599 | -9,253 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,678 | 11,696 | Perforated |
| 10,569 | 14,592 | Perforated |
| 11,688 | 13,963 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,100 | 14.75 | 1,735 S |
| 9.625 | 9,678 | 9.875 | 500 S |
| 7.625 | 9,678 | 9.875 | 500 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Oct 11, 1993 | Aug 31, 1993 | Yes |
| 00 | Feb 23, 1993 | Jan 12, 1993 | Yes |
| 00 | Feb 17, 1993 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-477-30700 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-477-30700 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/47730700, documented in the API reference.